请问这句话有没有什么错误?Function learning is the foundation of all modern scientific activities is the most important content,since

请问这句话有没有什么错误?Function learning is the foundation of all modern scientific activities is the most important content,since ancient times,people learn the research above,there is no stop in function,the function of calculus in many areas are playing an important role,in this paper,I will start as an important application of multivariate function differential calculus of multivariate function extreme value,this paper discussed some methods for extreme value,and establish proper geometric model discuss multivariate function integral calculus,then on geometric direction,we discuss the overall function of many variables calculus study Finally,I also in the direction of the series to the discussion of function of many variables calculus study,through this article,I hope that people with a different kind of view calculus,try to introduce some new discoveries of modern physics in the study of the basic subject of mathematics.